From b71aa4bd9737254ec6d0fc7294c1eac901af3017 Mon Sep 17 00:00:00 2001
From: Isaac Connor <isaac@zoneminder.com>
Date: Mon, 1 Feb 2021 16:01:30 -0500
Subject: [PATCH] Fix never allowing the queue to fill when pre_event_count=0

---
 src/zm_packetqueue.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/zm_packetqueue.cpp b/src/zm_packetqueue.cpp
index ed9006c7c..bb3c0697a 100644
--- a/src/zm_packetqueue.cpp
+++ b/src/zm_packetqueue.cpp
@@ -104,6 +104,8 @@ bool PacketQueue::queuePacket(ZMPacket* add_packet) {
       add_packet->keyframe
       and
       (packet_counts[video_stream_id] > max_video_packet_count)
+      and 
+      *(pktQueue.begin()) != add_packet
      ) {
     packetqueue_iterator it = pktQueue.begin();
     int video_stream_packets = 0;